When Humans Nearly Vanished Audiobook (Free)

Some 73,000 years ago, the Support Toba supervolcano in today’s Indonesia erupted, releasing the energy of the million a great deal of explosives. A lot ash and particles was injected into the stratosphere that it partially blocked the sunlight’s rays and triggered global temperatures to drop for a decade. With this book, Donald R. Prothero presents the controversial debate the Toba catastrophe nearly destroyed the human race, leaving only about a thousand to ten thousand breeding pairs of human beings worldwide. Human genes today display evidence of a “genetic bottleneck,” an impact seen when a inhabitants of organisms turns into so little that their hereditary diversity is significantly reduced. This band of survivors could be the ancestors of most human beings alive today. Prothero explores the geological and biological evidence supporting the Toba bottleneck theory, disclosing the way the explosion itself was found out and offering insight into the way the world changed afterward and what might happen if this eruption occurred today.